NodeCraft
Gold Bottle Cap
From Pixelmon Wiki
The Gold Bottle Cap is an item that maxes out all the stats of a level 100 Pokémon. When you right-click a level 100 Pokémon with this item, every stat (HP, Attack, Defense, Special Attack, Special Defense and Speed) will be maxed out.
The Gold Bottle Cap is obtainable via fishing only.
Bottle caps only effect the ivs for battling purposes it doesn't affect the type of Hidden power and it doesn't affect breeding.
